         (:socket-repl config)
 
         socket-repl
-        (try
-          (socket-repl/start socket-repl-config app-ref)
-          (catch Exception e
-            (log/warn-ex e ::socket-repl-ex)
-            nil
-            ))
+        (when-not (false? socket-repl-config)
+          (try
+            (socket-repl/start socket-repl-config app-ref)
+            (catch Exception e
+              (log/warn-ex e ::socket-repl-ex)
+              nil
+              )))
 
         cli-repl-config
         {:port 0 ;; random port, not for humans


  (do-shutdown (rt/stop-all app))

  (discard-println "shutdown complete."))

(defn make-port-files [cache-root ports]
  (io/make-parents (io/file cache-root "foo.txt"))

            (create-cli-checker cli-port)))

        nrepl
        (when-not (false? (:nrepl config))
          (try
            ;; problem child nrepl
            ;; we need to start a 0.2 nrepl server
            ;; if an older cider-nrepl version is used
            ;; otherwise it should be fine to start 0.4
            (let [use-old-nrepl?
                  (when (io/resource "cider/nrepl.clj")
                    (require 'cider.nrepl)

                    (when-let [the-ns (find-ns 'cider.nrepl)]
                      (= 'clojure.tools.nrepl.server
                        (-> (.getAliases the-ns)
                            (.get 'nrepl-server)
                            (.getName)))))

                  nrepl-ns
                  (if use-old-nrepl?
                    (do (log/info ::nrepl-fallback)
                        'shadow.cljs.devtools.server.nrepl)
                    'shadow.cljs.devtools.server.nrepl04)

                  _ (require nrepl-ns)

                  nrepl-start
                  (ns-resolve nrepl-ns 'start)

                  nrepl-stop
                  (ns-resolve nrepl-ns 'stop)

                  server
                  (nrepl-start (:nrepl config))]

              ;; return a generic stop fn
              (assoc server ::stop #(nrepl-stop server)))
            (catch Exception e
              (log/warn-ex e ::nrepl-ex)
              nil)))

        port-files-ref
        (atom nil)
